EDIT:I meant to make up a temporary ID… I need to look up how Plone does that now..
Maybe I’m confused, maybe I’m expecting too much, but is this the best way to generate content in a browser view (and do the nice normalized/duplicate-n ids like stock plone does)?
Warning: contrived mostly-working near-psudeo code ahead
import transaction
import datetime
from zope.app.container.interfaces import INameChooser
... imagine typical BrowserView code, maybe a z3c.form form, etc ...
@property
def portal(self):
return getToolByName(self.context, 'portal_url').getPortalObject()
@button.buttonAndHandler(u'Submit Request')
def process(self):
folder = getattr(self.portal, "my-folder", None)
if folder:
now = datetime.now()
title = "My Great Page, with Weird & Strange characters in the Title."
# "old"? way, sans the duplicate-n bit
tempid = self.context.plone_utils.normalizeString("New page created at %s" % now.strftime('%s, %f'))
folder.invokeFactory('Document',
tempid,
title=title
)
transaction.savepoint(1)
newpage = folder[tempid]
myid = chooser.chooseName(title, newpage)
folder.manage_renameObject(newpage.getId(), myid)
jjmojojjmojo: In Effect 
Yo! I have no idea what you are asking (and I tend to skim code in blog entries unless it is demonstrative of something that might help me ;-)), but if you don’t get an answer you should try the product-developers list.
Usually it seems people skim the content, so I decided to keep it brief… I’ll elaborate soon :)
Here’s the method I’ve used in the past, for generating new content from forms:
(hopefully formatting will be retained)
def createObject(self, parent, objtype, title, templateid, **kw):
objid = self.plone_utils.normalizeString(title)
objid = self.context.generateUniqueId(objid)
objid = parent.invokeFactory(objtype, id=objid, title=title )
context = getattr(parent, objid)
template = context.restrictedTraverse(‘@@’ + str(templateid))
context.edit(title=title,
Text=template(context),
text=template(context),
**kw)
context._renameAfterCreation()
if templateid in [‘syllabus_view’]:
context.setPresentation(True)
context.reindexObject()
return context
Le sigh…
You can see it well formatted here: https://educommons.com/svn/eduCommons32/enpraxis.educommons/trunk/enpraxis/educommons/portlet/coursebuilderform.py
atreal.massloader/trunk/atreal/massloader/adapter.py
+from zope.app.container.interfaces import INameChooser
+
+ chooser = INameChooser(container)
+ # chooseName is expected to choose a name without error,
+ # so no try and except should be needed
+ return chooser.chooseName(txt, container)
That’s what I tried initially, but it wouldn’t return a proper increment if there was another object with the same name in the container. From looking at the code for INameChooser (the implementation registered for a Plone stock Folder, anyway), it’s expecting an object within the container, not the container itself as the second argument to chooseName… Maybe that’s a bug, or deals with the rename-after-add script, I don’t know.
here’s the code (not sure what version I’m using off the top of my head, but trunk looks pretty accurate), http://svn.plone.org/svn/plone/plone.app.content/trunk/plone/app/content/namechooser.py
I don’t know if that’s a mistake in the way plone.app.content implements the interface, or if I need to use a multiAdapter to get it in the right frame of mind.